open access

https://hdl.handle.net/2115/46103

Optimization of Meander Line Antenna Considering Coupling Between Nonlinear Circuit and Electromagnetic Waves for UHF-Band RFID

英語

RFID

2011-05

IEEE Transactions on Magnetics

47(5)

1506-1509

This paper presents optimization of meander line antennas (MLA) for passive IC tags which contain non-linear circuits. In the present analysis, the tag antenna loaded by the Cockcroft-Walton circuit is analyzed by solving coupling equations for electromagnetic waves and non-linear circuit with FDTD method. The antenna shape is optimized so that the output voltage of the Cockcroft-Walton circuit is maximized using the micro genetic algorithm (μ GA). The computational burden in the optimization processes is effectively suppressed by truncating the transient computations. A criterion is introduced to evaluate the errors caused by the truncation. The present method yields the optimal MLA which has the greater output voltage in comparison with the dipole antenna.

学術雑誌論文

Accepted Manuscript

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0018-9464

1941-0069

AA00667933